Case Study: A1 boosts grammar learning and user engagement with Human's A1 Lapsus app

A1 launches app in 3 weeks with Human, reaching 100,000 users

The customer, a major telecommunications company referred to as A1, partnered with the vendor Human to create a unique mobile app. Their challenge was to develop an engaging tool that would help young users improve their Croatian grammar in a fun and rewarding way, aligning with a marketing concept from the agency Bruketa&Zinic&Grey.

Human developed a native Android app called A1 Lapsus using React Native. The solution required users to answer a grammar question after every third phone unlock, with correct answers rewarding A1 prepaid users with free mobile data. This project became one of Croatia's most successful app launches in 2019, with nearly 100,000 users answering 50 million grammar questions. The app was also recognized with an Effie Award and an IAB Mixx award for Best Mobile App.

A1